[Tigers] Windshield Washer Question

[Steve Sage]

Tom:
That's very interesting and maybe you have hit on the answer. I now have 
the electric pump installed behind the dash, slightly above where the 
old plunger, and now electric switch for the pump, comes through the 
dash. So now the pump is "pulling" the water all the way from the bottle 
to behind the dash and the pump, then up to the washer jets.

Maybe I need to re-install the pump in the engine compartment next to 
the washer bottle, so it "pushes" the water through the hose from there. 
I wonder if the electric pump itself has a "check valve" of some sort in 
it to keep water from flowing backwards through it when it's off. That 
wouldn't do any good in its present location.

The next question would be should I punch a hole in the bottom of the 
washer bottle and run a tube from there to the pump (maybe installed 
below the bottle)? That could feed the water by gravity to the pump, and 
the pump would then "push" the water through the line up to the jets. 
This way the pump wouldn't be deprived of water on start up so even if 
it still took a few seconds to get the water through the jets, the pump 
wouldn't be running dry during that time. I've got an extra washer 
bottle I can use to experiment with so I'm OK to try it.

Steve Sage



Thomas Witt wrote:
> Steve,
>   Many systems have an anti backflow valve (think of it as a diode for 
> fluid).  The purpose is to keep fluid from draining back in the line thus 
> you get your fluids flowing faster to the nozzle. It should be installed 
> after the pump. So, here are some thoughts:
>  1. Maybe the valve isn't working?
>  2. Maybe it is in backwards?
> 3. Maybe it is in the wrong place in the line?
>
> Can you hear the pump load after a duration of use, or is it just that you 
> don't see any fluid for that time?    I the reason I ask is that the pump is 
> usually located below the reservoir and should basically be "primed." 
> Anyway, hope this gives you something to consider.
> Tom Witt
>
>
> [





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